Specific Heat of the Spin-Fluctuation System UAl2

Abstract
We report measurements of the specific heat of paramagnetic UAl2 between 0.8 and 25 K in magnetic fields up to 43 KOe. A nearly field-independent T3lnT term dominates the temperature region below 10 K. The susceptibility was measured between 3 and 10 K and varies as 1AT2. These results, and earlier resistivity measurements, are consistent with the predictions of the spin-fluctuation model. This is the first unambiguous observation of the specific heat predicted by the spin-fluctuation model for an atomically ordered paramagnet.